Explore the Life Cycle of Insects

When I discovered an important butterfly, I would pursue it for hours to catch it. On one occasion, while collecting in Jirisan Mountain, I found a small butterfly I had never seen before. I chased it for over three hours, falling many times and becoming covered in blood, but eventually, I managed to catch it. I named the butterfly  ‘①   Pale Butterfly’ after the place of discovery. About five years after I began studying butterflies, I analyzed around 160,000 butterflies and published a paper titled “A Study on the Variation of the Cabbage White Butterfly” in 1936. By studying the shape, patterns, coloration, form, and length of the wings, I discovered that over 20 butterflies, previously classified as different species, were actually all part of the cabbage white butterfly species. This research led to the publication of “A Synonymic List of Butterflies of Korea” as an English monograph in 1938, following a request from the Royal Society of London. Japanese researchers had classified Korean butterflies into 921 species. However, after a decade of studying variations, I demonstrated that their classification was inaccurate. I reclassified the species into 250 groups, demonstrating that minor differences in traits should not separate them. I traveled across the country, collecting over 750,000 butterflies and documenting their distribution.